How to Open NWD File in AutoCAD 2020?

Understanding NWD Files and Their Purpose

NWD files, created by Navisworks, serve a specific function in the realm of computer-aided design (CAD). These files allow users to view three-dimensional models, including various structural designs. They provide a secure and non-editable format, primarily intended for sharing rather than direct editing. Understanding the limitations of NWD files is crucial for those looking to integrate them into their workflows effectively.

Viewing NWD Files

To view NWD files, you need to use specialized software. The Navisworks Freedom and Navisworks Manage applications are both capable of opening these files. If you need to create an NWD file, you can do so by accessing the Publish option in Navisworks Manage. This will allow you to share the file with others without risking alterations.

Importing NWD Files into AutoCAD

While AutoCAD cannot directly open NWD files for editing, there are methods for integrating NWD into your AutoCAD projects. Here’s a detailed step-by-step guide:

1. Exporting to DWF: Since AutoCAD doesn’t support direct NWD imports, start by exporting the NWD file to a DWF file using Navisworks.

   • Open the NWD file in Navisworks.
   • Select the Export option and choose DWF as the file format.

2. Attaching the DWF in AutoCAD:

   • Open AutoCAD 2025.
   • Create a new drawing by clicking on "New" from the File menu.
   • Use the command DWFATTACH to insert the exported DWF file.
   • Navigate to the DWF file location and select it for attachment.
3. Using External References:
   • Once the DWF is attached, you can manage it through the External References palette available in AutoCAD.
   • This allows for viewing the model without direct editing capabilities, ensuring the integrity of the original design.

Converting DWG to NWD

If you need to create an NWD file from an existing DWG file, you can follow these steps:

1. Export from AutoCAD:

   • Use the command NWCOUT in AutoCAD to export the DWG file as an NWC file.

2. Open in Navisworks:

   • Launch Navisworks Manage or Simulate.
   • Open the newly created NWC file.
3. Publishing the NWD File:
   • Navigate to the Publish command in Navisworks.
   • Ensure to activate the options for embedding Recap and texture data if necessary.
   • Save the file as an NWD.

FAQ Section

1. Can AutoCAD open NWD files directly?
AutoCAD cannot open NWD files directly for editing. However, you can use them as external references to integrate the information into your project.

2. What is the purpose of using DWF files in AutoCAD?
DWF files provide a format that allows you to reference designs without needing to interact directly with the original CAD files, ensuring secure sharing and preserving the integrity of designs.

3. Is it possible to convert NWD files to other formats?
While NWD files cannot be directly converted to editable formats like DWG, you can export them to DWF or FBX formats, which can be used in AutoCAD and other design software.